Oil burner



H. P. IRMITER OIL BURNER Filed Feb, 15. 1925 -u\ ap Feb. 21, 1928.

Patented Feb. 2l, 1928.

HUBERT P. minima', or MINNEAPoLis; MINivEsoTA.

on; BURNER Application filed February 13,y 1925.` Serial Nb. 8,886.

This invention relates toanoil burner,`

andwhile the `invention, is applicable to many types of burners, it particularly is designed for use in acook stove or in adomestic furnace. When used fora cook stove a* burnenshould `beof a form whichl can easily and quickly be installed? in the cook stove without any considerable change in the stove" and` the burner' should be one that will ivean efficient andi-wide distribution ofthe aime.

It' is an i object of this invention;` therefore,"` toprovide a burner fora cook stove or furnace comprisingvery few parts` which are easily" constructed' and assembled 4and` which ina bereardil and1 quickly installed.

tvis a furt "er object of the invention to provide such a burner comprising `a base tapering toward one end, which endis pr`0- videdf with an" air inlet passage,` and the other endof'which constitutes a basin and an oilf supply means. l

n It is further anobjectfof the invention to provide a burner having la base, asfdefined in the above paragraph, together with a re versely bent'conduit having' af substantially 180 degree bend^ having means fitting over a flangelsurroundingf the air passage ofsaid baise and having its `otl1" nend disposed over thebasinand around` the upperpart of the' oil supplyinea'ns. p p y It is stilll another object of theiinvention Y to provide a burner having `a` base formed same parts throughout the dife'rent views,`

at itstop toconstitute a basinby Ywhich the i'ame'is deflected; said basin having? af plate disposed below the same and largelyA spaced therefrom.

It is also an object of the invent-ion to-provide a burner having a base formed at one end vat its top as a deiiectinggg-` basin, which basin has at its rear side a deflecting `rib extending thereacross.` y

These andl other" objectsand advantages of the` invention will be fully set forth in the following description made* inlconnectionl with the accompanying drawings, in which like reference characters refer tothe and in which@` Fig; 1 is a top planview of a portion of all stove; the walls of which are shown' in section andtshowinga plan view of the burner therein;

Fig. 2 is atoplplan viewoff'the burners;`

Flg.- 3 is ar verticahsection takenon" the line 343 of Fig. 2, as indicatedvby the arrows, showing" theburner in place on the i grate bars ofthe stove; i i

Fig. 4 is a vertical section taken on the line 1 4 of Fig. 2, as indicated by the arrows;`

Fig.r 5 is a vertical section' taken `onfthe line` 5-215` of Figi` 2, as indicatedby the arrows;

6 is a partial view similar showing a modified structure. i

Referring tothe drawing` the burner is shown comprisinga base portioni 6.l This base portion is generally of oblongfsha e to Figi having* senii-cylindrical1 `endlportions, t e sideportlons beingtange'nttoithese endpor tions. Oneendof the ibase is much smaller 1n transverse direction` than the .other end and thesides thus `convergetowa-rd said ifirst mentioned endlf The Ibottom portion ofthe basef is of "open formation andthe walls thereof* are" adapted `to rest upon? the grate barsLB ofa stove or furnace; thel burner y kpreferably beingheld` in place by clay7 or other similar substance C being` placed thereabout and over and betweeni the grate bars B" which are not coverediby the burner. The sinalliend ofthe base 6 has a passage @extending therethrough, than perfend of:` which is surrounded bv an annu ar flange *6Fl having a ledge or shoulder@ 6" formed `there'aboiit.".Thje larger or frontfendiof the baseisformed at itstop as abasn t'lhav"u ing upwardly sloping outer sides andI a central postoe shown as integralwith" the baserises from` the 'centra-l portion e of the basin 6d. The post "6 isf generally of `cylindr'ieal shape and may be formed witha `uppe'rtaper and] has its top portion formed of reduced diameter forming a ledge 6. The post 6 hasa central-passageextendingltherethrough and; also hasasrnallannu ar groove 6g in its' top surface surround ing said opening.` An oil supplypipe 7 is securedin thebottomlof the openingi in ost 6"`,and whilethevsame" may be secure in any suitable manner, it is shown as threaded intol said opening. The post 6% as clearly shown in Fig. 351s somewhat hollow` and the i same; togetherwith the bottom partfof `basin 6, has a plate 8 entedingacross the same, whichhplate maybe fastened or secured in place 1n`^` any suitable manner, asf* by the rivetsl formed on the bottomof the basin 6d. The basin 6d has a lateral extensiontoward its rear side, the top surface of which is a slight distance below the top of the basin, and a passage 6j extends downwar-dly therefrom, an overflow drain pipe 9 being secured in said opening, as by the screw threads shown in Fig. 5. The basin 6d also has extending` thereacross from the rear side of post 6e to its rear wall, a deflecting riby 6k, the sides of which slope downwardly and outwardly to the bottom of said basin. A reversely bent conduit 10 is provided extending through substantially 180 degrees, which conduit is formed at its rear side with a depending shouldered flange 101 adapted to fit around the flange Gb and to rest on the ledge- 6C. The inner surface of flange 6b is flush with `the inner surface of the wall of conduit 10 so thatan unobstructed passage is formed by the passage 62L and the passage through the conduit 10. VThe other end of conduit 10 is open and directed downwardly centrally of the basin 6d, -said end surrounding theupper end of post 6C.

In the modification shown in Fig. 6, a

separate cup-shaped member 11 is used adapted to fit in the basin 6d and the same has an opening fitting about the post 6.

' In operation, the burner is installed, as indicated in Figs. 1 and 3. The oil is supplied through the pipe 7 by gravity or other pressure and iiows upwardly through the opening in post 6e and out onto the top surface thereof into groove 6g. To starty the burner, some oil will be placed in the basin 6d or a piece of oily waste or other combustible matter placed therein. This will heat the post 6*a and the oil issuing at the top thereof will be vaporized. Air passes upwardly through passage 6a through the grate bars and is directed downwardly about the post 6* by the conduit 10. This air is thus mixed with the vaporized fuel and an efficient combustible mixture formed which is ignited and lthe flame produced is reflected and deflected by the walls of the basin 6d and directed outwardly therefrom about the greater portion of its extent As the air is directeddownwardly at the'rear portion of the basin it is deiiected to each side on the rib 6k and the flame will be directed toward the rear or small end of the burner substantially on a line passing through the center of post 6e and tangent to the rear side of conduit 10. If any unvaporize'd oil should run over the top of the post 6e it will spread out on the ledge Gf and will be here vaporized by the heat of the parts. Trouble has been experienced in some burners by the cold air fro-m the grate barsre'aching the heated parts causing the same to crack. To prevent this, a plate 8 is provided which will be made of steel or other heat resisting material. This plate prevents the cold air coming through the grate' bars from engaging directly with the bottom of the basin 6d. Cracking of this basin, therefore, due to the cold air striking the same is prevented. If, for any reason, oil should accumulate in basin 6d as when the the oil might be flowing with the burner extinguished, the same will pass into the lateral extension of the basin and out'through the opening 6j and pipe 9. It has been found in some previous burners where a separate post or cone is used in a deflecting basin, that owing to the heating and expansion and contraction, the post or conc would get out of axial alinement with the basin. Thiswould cause imperfect action and deposits of carbon. Byv providing vthe yheavy integral post 6G, and connecting the pipe 7 directly to the underside thereof, applicant- The tapered form or converging sides of the base also constitute an important feature of the burner. As shown in Fig. 1, the burner can be placed with one side of the base against the front wall D of the re box. It is al common practice to have thev front and end wall of the fire box formed as a water heater to which water is supplied toV and taken from by the pipes 12 and 13, respectively. By disposing the burner, as shown in Fig. 1, a wide distribution of the flame is secured and a largeportion of the front wall,

as well as the end wall and rear wall of the fire box 4will be contacted by the flame. A wider range of flame distribution is thus obtained than would be obtained if the sidesl of the base were parallel and the transverse dimension of conduit 10 were greater.

In the modification shown in 6, a separate cup member 11 is used. This may be made as a casting or a stamped or forged plate. When the burner is running at full capacity, the top of the basin 6d becomes very 'l -highly heated and if the metal is not of good quality the basin may be burned out. By providing the simple cup 11 the same can lbe y removed if it becomes distorted and it will not be necessary to supply an entirely new base piece.

From the above description, it is seen that applicant has provided a very simple and efficient burner and one which will have highv utility for the purpose intended. Theburner comprises veryfew parts and thesecan be easily made, assembled and disassembled.-

The burner can also be quickly and easily installed in a stove or furnace and can reads. ily be removed therefrom, if desired. The Y llO pipe connections are quite simple. The burner has been demonstrated in actual practice and found to be very eicient.

It Will, of course, bennderstood that variL ous changes may be made in the form, cie-- t tails, arrangement and proportion `of the parts without departing from the scope of applicants invention, which, generally stated, consists in a device `capable of carrying out the objects abo-ve set forth, such as shown and described and in the novel parts and combination of parts disclosed and defined in the appended claim. i

What is claimed is: An oil burner comprising a base having a basin formed in its front end and a cyliu drical upstanding post formed in the centre of said basin forming an oil supply means, said base having an aperture in its rear end, a conduit over said aperture and reversely bent to discharge gases over` said basin and post When the device is in operation, said ase having an upwardl curved and vertiL cal rib extending'from t e rear side 0f said ost to adjacent said aperture, said rib be ing adapted to direct the gases issningfrom said conduit to either side of said basin.

In testimony whereof I aix my signature.

HUBERT P. IRMrTER. 

